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Subject[PATCH 1/2] drm/nouveau: Add strap_peek to debugfs
Date
Since we already expose the vbios.rom file here, why not also expose the
strap_peek?

Signed-off-by: Lyude Paul <lyude@redhat.com>
---
drivers/gpu/drm/nouveau/nouveau_debugfs.c | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_debugfs.c b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
index 9109b69cd052..7379c20584a2 100644
--- a/drivers/gpu/drm/nouveau/nouveau_debugfs.c
+++ b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
@@ -46,6 +46,26 @@ nouveau_debugfs_vbios_image(struct seq_file *m, void *data)
return 0;
}

+static int
+nouveau_debugfs_strap_peek(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = m->private;
+ struct nouveau_drm *drm = nouveau_drm(node->minor->dev);
+ int ret;
+
+ ret = pm_runtime_get_sync(drm->dev->dev);
+ if (ret < 0 && ret != -EACCES)
+ return ret;
+
+ seq_printf(m, "0x%08x\n",
+ nvif_rd32(&drm->client.device.object, 0x101000));
+
+ pm_runtime_mark_last_busy(drm->dev->dev);
+ pm_runtime_put_autosuspend(drm->dev->dev);
+
+ return 0;
+}
+
static int
nouveau_debugfs_pstate_get(struct seq_file *m, void *data)
{
@@ -185,7 +205,8 @@ static const struct file_operations nouveau_pstate_fops = {
};

static struct drm_info_list nouveau_debugfs_list[] = {
- { "vbios.rom", nouveau_debugfs_vbios_image, 0, NULL },
+ { "vbios.rom", nouveau_debugfs_vbios_image, 0, NULL },
+ { "strap_peek", nouveau_debugfs_strap_peek, 0, NULL },
};
#define NOUVEAU_DEBUGFS_ENTRIES ARRAY_SIZE(nouveau_debugfs_list)

--
2.17.1
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